# Functions
百度链接推送.
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文章详情.
话题详情.
用户主页.
截取markdown摘要.
获取用户角色.
index of.
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是否是正式环境.
验证用户名合法性，用户名必须由5-12位(数字、字母、_、-)组成，且必须以字母开头。.
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